[Elecraft] "Hybrid" Power Supply--is this a bad idea?

Paul Christensen w9ac at arrl.net
Mon Jan 25 09:23:29 EST 2010


> "What I don't understand is why they didn't double up on the cap,
upsize a few things and get it to 22 amps 50% duty cycle..."

It should be possible to parallel another 5 Farad of C by adding a DC 
connector to the Gamma supply.   For higher duty cycle operations, just plug 
the added C into the new DC jack.   For lower duty cycle, the added C would 
be left unplugged.

Real estate is pretty tight inside the Gamma supply.  Probably the best 
attempt may be a coaxial DC jack and it cannot be accidentally reversed with 
the existing Molex output connector.   The Gamma supply works very well with 
the K3 and the inclusion of more C would probably make it even better under 
higher duty cycle operations.

Paul, W9AC 



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